LEDMO Photocell Sensor, Auto On Off Photocell Switch, Twist Lock Photocell for LED Barn Light, Area Light, Street Light, Parking Lot Lights and Dusk to Dawn Light Photocell sensor - Automatically turns parking lot light on at dusk and off at dawn Easy to install - Just need to plug in a base, twist lock plug for quick installation Surge Protection Available, help to protect the lamp from the lightening Waterproof IP65 rating - Suitable for putting outdoor lighting, exterior lighting, street lighting, parking lot, pedestrian pathway and landscape lighting Warranty - 10 year warranty---your satisfaction is guaranteed!